A growing number of British teens are "sexting," exchanging explicit pictures of themselves via their mobile phones in a practice experts say may leave them vulnerable to cyberbullying and other forms of victimization.

Word of the Day

pawl

A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.